[Towertalk] Re: M2 10-30LP8 log periodic Yagi

[Jan Erik Holm]

Here we go again with crummy gain figures, guess M2 is no
better then Force12.
If it doesnīt say "what  kind of gain" it is or how itīs measured
it sure ainīt worth the cost of the ink.

73, Jim SM2EKM

PS: I can testify that K1KW sure used to have a fat signal with
his stacked LPīs.
------------------------------------------------------------------

Pete Smith wrote:

>At 10:41 AM 3/18/02 -0500, Chuck O'Neal wrote:
>
>>Absolutely not true!!!  If you take the aluminum required for
>>monobanders, 3 or 4 or 5 elements each, for three bands
>>10, 15, and 20M, and make one log out of it, you get the WARC
>>bands, all of every amateur band without regard to phone 
>>or CW tuning, better F/B ratio across entire amateur bands,
>>Better  SWR performance , with only a compromise in gain 
>>of 1 to under 2 dB, depending upon the design.. 
>>
>
>But a 10-30 MHz or a 14-30 MHz log on any given band doesn't even approach
>the performance of a good 3-element monoband yagi.  Check out the M2 gain
>and F/B claims on the Array Solutions web site -- even their 11-element
>6-30 MHz LP on a 76-foot boom only claims a peak of about 9.7 dB gain
>(their chart doesn't specify dBi or dBd), and average gain is closer to 7.5
>dB.  And those are the manufacturer's claims. 
>
>A fairer standard of comparison would be an antenna like the Force 12 XR-5,
>compared to a 14-30 MHz LPDA.  
>
>
>73, Pete N4ZR
>
>Check out the World HF
>Contest Station Database at
>www.pvrc.org
>
>
>
>
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